He should guess about 34 times.
When you are rolling two dice there are 36 probabilities. In order to get an 8, there are 5 possibilities.
2 + 6, 3 + 5, 4 + 4, 5, + 3, 6 + 2
Therefore, the chances of an 8 are 5/36. Multiplying this by 250 gives us about 34.
The law of large numbers helps because it says the more rolls that take place, the more likely we are to get close to the expected value. With 250 rolls we should get pretty close.
Answer:
A. 4x+13
Step-by-step explanation:
distribute the 4
(4x+20) -7
4x+13
Answer:
So we know that rolling a fair six-sided die twice would mean the total possible outcomes would be 36, and rolling the 4 on the first roll and a 2 on the second roll would be 2/36 or 1/18
Step-by-step explanation:
(1/6)*(1/6)=(2/36)=(1/18)
1/16
the probability of flipping head on the first flip is 1/2
the probability of flipping head on the second flip is 1/2 of that, or 1/4
the probability of flipping head on the third flip is 1/2 of that, or 1/8
the probability of flipping head on the fourth flip is 1/2 of that, or 1/16
You can prove it by the SAS postulate which should be the first option
